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ST7570TR 데이터시트(PDF) 11 Page - STMicroelectronics |
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ST7570TR 데이터시트(HTML) 11 Page - STMicroelectronics |
11 / 26 page ST7570 Electrical characteristics Doc ID 17526 Rev 2 11/26 PGA_MIN PGA minimum gain -18 dB PGA_MAX PGA maximum gain 30 dB Oscillator V(XIN) Oscillator input voltage swing Clock frequency supplied externally 1.8 VDDIO V p-p V(XIN) TH Oscillator input voltage threshold 0.8 0.9 1 V f(XIN) Crystal oscillator frequency 8 MHz f(XIN) TOL External quartz crystal frequency tolerance -150 +150 ppm ESR External quartz crystal ESR value 100 Ω CL External quartz crystal load capacitance 16 20 pF fCLK_AFE Internal frequency of the analog front end 8 MHz fCLK_PROT_ctrl Internal frequency of the protocol Ctrl core 28 MHz fCLK_PHY_proces sor Internal frequency of the PHY processor core 56 MHz Temperature sensor T_TH1 Temperature threshold 1 63 70 77 °C T_TH2 Temperature threshold 2 90 100 110 °C T_TH3 Temperature threshold 3 112 125 138 °C T_TH4 Temperature threshold 4 153 170 187 °C Zero crossing comparator V(ZC_IN_A) MAX Zero crossing analog input voltage range 10 V p-p V(ZC_IN_A) TL Zero crossing analog input low threshold -40 -30 -20 mV V(ZC_IN_A) TH Zero crossing analog input high threshold 30 40 50 mV V(ZC_IN_A) HYST Zero crossing analog input hysteresis 62 70 78 mV ZC_IN_D d.c. Zero crossing digital input duty cycle 50 % Digital section Digital I/O Table 5. Electrical characteristics (continued) Symbol Parameter Note Min. Typ. Max. Unit |
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